INVESTIGATION OF THE EFFECT OF DIFFERENT DESIGN AND FLOW PARAMETERS ON BATTERY COOLING SYSTEM PERFORMANCE

In this study, a module consisting of 30 pouch-type lithium-ion batteries with Lithium Iron Phosphate (LFP) chemistry, known for its lower flammability, was modeled along with its cooling system in a one-dimensional framework. The modeling was conducted using Matlab Simulink and Simscape Battery. The temperature variations and heat generation rates of the battery system were analyzed at different discharge rates. A liquid cooling system, designed to cool the battery module from below, was developed. The cooling performance was examined by selecting a laminar flow regime at lower Reynolds numbers, which were assumed to result in lower pumping losses. In the analyses performed at different Reynolds numbers and with varying numbers of cooling plate channels, it was observed that as the Reynolds number increased, both the heat transfer rate and coolant flow velocity increased, leading to a reduction in battery temperature values but an increase in pressure values.